This study was carried out to evaluate the effect of some medicinal plants in natural form (garlic, nigella and henna) and mixture of them on some dermatophytes isolated from clinical cases of sheep ringworm in different farms. These dermatophytes were T. mentagrophytes, T. rubrum, T. soudanense, M. canis and M. gypseum. The obtained results revealed that the addition of aqueous solution of garlic to S.D.A. by
 
EFFECT OF MEDICINAL PLANTS ON DERMATOPHYTES
concentrations (2.5%, 5% and 10%) inhibits the growth of tested dermatophytes and that inhibition ranging from 47.5% to 100%. Also the addition of nigella by the same concentrations to S.D.A. inhibit the growth of tested dermatophytes in a range from 35.13% to 100%. In case of henna at the same concentrations the inhibition rate ranged from 21.87% to 100%, while the addition of mixture of three plants to the medium at final concentration 10% (containing equal amounts of three materials) inhibit the growth of experimented dermatophytes with proportions ranging from 58.8% to 100% in comparison to control media with additives of tested medicinal plants.